[Merge to M50] [Chrome OS Bootstrapping]: Do not always power off the Bluetooth adapter.

chrome/browser/chromeos/login/wizard_controller.cc

Index: chrome/browser/chromeos/login/wizard_controller.cc
diff --git a/chrome/browser/chromeos/login/wizard_controller.cc b/chrome/browser/chromeos/login/wizard_controller.cc
index 0102cee2c459c30286c2d2c382eb957441626b9e..2fd196fd42560f8852f2830fade59e826d793070 100644
--- a/chrome/browser/chromeos/login/wizard_controller.cc
+++ b/chrome/browser/chromeos/login/wizard_controller.cc
@@ -378,7 +378,9 @@ BaseScreen* WizardController::CreateScreen(const std::string& screen_name) {
   } else if (screen_name == kHostPairingScreenName) {
     if (!remora_controller_) {
       remora_controller_.reset(
-          new pairing_chromeos::BluetoothHostPairingController());
+          new pairing_chromeos::BluetoothHostPairingController(
+              BrowserThread::GetMessageLoopProxyForThread(
+                  BrowserThread::FILE)));
       remora_controller_->StartPairing();
     }
     return new HostPairingScreen(this,
@@ -1334,6 +1336,7 @@ void WizardController::MaybeStartListeningForSharkConnection() {
   if (!shark_connection_listener_) {
     shark_connection_listener_.reset(
         new pairing_chromeos::SharkConnectionListener(
+            BrowserThread::GetMessageLoopProxyForThread(BrowserThread::FILE),
             base::Bind(&WizardController::OnSharkConnected,
                        weak_factory_.GetWeakPtr())));
   }